LONDON (AP) — Prince Harry says he loves being an uncle, telling children at an awards ceremony that he’d just witnessed the baby who may one day be king crack a smile.

Harry, who was pushed back to fourth-in-line to the British throne following the birth of his brother’s son, Prince George, said Wednesday he’d just visited the 1 ½-month-old royal, who was taking a bath.

Harry told 9-year-old Nikki Christou that it was the “first time I’ve seen him smile.” The prince seems to have warmed to his new family role, telling Mary Kirk, the mother of another child, that being an uncle was “fantastic.”

The ceremony was hosted by the WellChild charity, which is dedicated to the needs of sick children and their families.